Riscv GCC 4.9.2 can'；t编译linux 3.14.29

当我使用riscv gcc（verison 4.9.2）编译linux（版本3.14.29）时，我遇到了一些错误，gcc似乎无法识别某些操作码，我该如何解决？是否将gcc更改为4.6版？谢谢

root@riscv-VirtualBox:/home/riscv/riscv/linux-3.14.29# make ARCH=riscv
scripts/kconfig/conf --silentoldconfig Kconfig
  ......
/home/riscv/riscv/linux-3.14.29/arch/riscv/include/asm/irqflags.h: Assembler messages:
/home/riscv/riscv/linux-3.14.29/arch/riscv/include/asm/irqflags.h:22: Error: Instruction csrc requires absolute expression
/home/riscv/riscv/linux-3.14.29/arch/riscv/include/asm/irqflags.h:22: Error: Instruction csrc requires absolute expression
/home/riscv/riscv/linux-3.14.29/arch/riscv/include/asm/irqflags.h:10: Error: Instruction csrr requires absolute expression
/home/riscv/riscv/linux-3.14.29/arch/riscv/include/asm/irqflags.h:22: Error: Instruction csrc requires absolute expression
/home/riscv/riscv/linux-3.14.29/arch/riscv/include/asm/irqflags.h:22: Error: Instruction csrc requires absolute expression
/home/riscv/riscv/linux-3.14.29/arch/riscv/include/asm/irqflags.h:10: Error: Instruction csrr requires absolute expression
/home/riscv/riscv/linux-3.14.29/arch/riscv/include/asm/irqflags.h:16: Error: Instruction csrs requires absolute expression
/home/riscv/riscv/linux-3.14.29/arch/riscv/include/asm/irqflags.h:16: Error: Instruction csrs requires absolute expression
/home/riscv/riscv/linux-3.14.29/arch/riscv/include/asm/irqflags.h:10: Error: Instruction csrr requires absolute expression
/home/riscv/riscv/linux-3.14.29/arch/riscv/include/asm/irqflags.h:16: Error: Instruction csrs requires absolute expression
/home/riscv/riscv/linux-3.14.29/arch/riscv/include/asm/irqflags.h:16: Error: Instruction csrs requires absolute expression
make[1]: *** [init/main.o] Error 1
make: *** [init] Error 2

root@riscv-VirtualBox:/home/riscv/riscv/linux-3.14.29# riscv64-unknown-elf-gcc --version
riscv64-unknown-elf-gcc (GCC) 4.9.2
Copyright (C) 2014 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

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Chris，我使用以下方法安装RICV工具：

git clone https://github.com/riscv/riscv-tools.git
git submodule update --init --recursive
./build.sh

并使用以下方法获取linux源代码：

 curl https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.14.29.tar.xz | tar -xJ 
cd linux-3.14.29 
git init 
git remote add origin https://github.com/riscv/riscv-linux.git 
git fetch 
git checkout -f -t origin/master

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您的存储库中存在不匹配（这可能不是您的错）。您可以尝试查看“new_privileged_isa”分支机构，但问题是RISC-V特权规范（截至2015年4月30日）仍在不断变化，我们无法保证分支机构的负责人都能协同工作

您正在使用riscv工具的主分支和riscv linux的主分支吗？（不是riscv gnu工具链的主分支，而是riscv工具主repo所指的任何提交）。是的，我使用了riscv工具的主分支和riscv linux的主分支，请参见下面我的安装步骤下面是我安装riscv工具和linux的步骤，有什么错误吗？谢谢你，我将尝试“新特权”分支机构查看“新特权”分支机构为我工作。谢谢。